Schefferville Permafrost Temperature Database from 192 Boreholes

Schefferville, Quebec provides ground temperature data from 192 boreholes within the discontinuous permafrost zone. The dataset spans 1957 to 1982, with borehole depths ranging from 4 to 137 meters and record lengths varying from single measurements to over 16 years. It is structured in two linked tables containing borehole metadata and temperature readings, provided by the National Aeronautics and Space Administration.

Use Cases

• Analyzing permafrost thermal stability over time using temperature time-series records.
• Modeling subsurface heat flow by correlating temperature data with borehole depth and location.
• Studying the impact of local geology on ground temperature across ten named ore deposits.
• Assessing discontinuous permafrost dynamics using spatially distributed measurements from 192 sites.
• Validating climate or geothermal models with historical in-situ temperature data spanning 25 years.

Strengths

• Contains measurements from 192 distinct boreholes, providing significant spatial coverage.
• Offers a long temporal record, with data spanning 25 years from 1957 to 1982.
• Includes detailed borehole metadata (location, depth) linked to temperature readings via a unique site number.
• Records vary in length, with the longest continuous time-series covering 16 years.

Limitations

• Record length is inconsistent, ranging from a single measurement to multi-year series.
• There is a conflict in the 'last updated' metadata: one source states 2026-03 12, while another indicates the data itself ends in 1982.
• Specific column names and the total row count are not provided by any source.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Temperature cables installed in boreholes at specific ore deposits.

Time Range

1957 to 1982

Freshness

2026-03-12 21:59:25.097796

Geography

Schefferville, Quebec (54°48'N, 66°50'W), within the discontinuous permafrost zone.